期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 64, 期 1, 页码 210-216出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.5b05102
关键词
isoflavones; equol; menopause; gut microbiota; fecal phenolic metabolites
资金
- Spanish Ministry of Economy and Competitiveness [AGL2011-24300-ALI, AGL-2014-57820-R, AGL2012-40172-C02-01]
- FPI Program from MINECO [BES-2012-062502]
- JAE-Doc Program from CSIC
Phenolic compounds were screened by UPLC-ESI-MS/MS in the feces of 15 menopausal women before and after long-term isoflavone treatment. In total, 44 compounds were detected. Large intertreatment, interindividual, and intersample variations were observed in terms of the number of compounds and their concentration. Four compounds, the aglycones daidzein and genistein and the daidzein derivatives dihydrodaidzein and O-desmethylangolensin, were associated with isoflavone metabolism; these were identified only after the isoflavone treatment. In addition, 4-ethylcatechol, 3-hydroxyphenylacetic acid, and 3-phenylpropionic acid differed significantly in pre- and postintervention samples, whereas the concentration of 4-hydroxy-5phenylvaleric acid showed a trend toward increasing over the treatment. The phenolic profiles of equol-producing and -nonproducing groups were similar, with the exceptions of 3-hydroxyphenylacetic acid and 3-phenylpropionic acid, which showed higher concentrations in equol-non-producing women. These findings may help to trace isoflavone-derived metabolites in feces during isoflavone interventions and to design new studies to address their biological effects.
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